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arXiv 1009.1902cond-mat.mtrl-sci
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表面电荷密度的定量测量

Quantitative measurement of the surface charge density

Florian Johann, Elisabeth Soergel

摘要:

提出了一种测量介质表面电荷密度的方法。类似于静电力显微镜,我们记录的探针和样品表面之间的静电相互作用,但在大的尖端样品的距离。为了校准,我们使用热电样品,这使我们能够通过控制温度变化来改变表面电荷密度。为了证明原理,我们确定了铁电锂酸盐在环境条件下的表面电荷密度。

英文摘要:

We present a method of measuring the charge density on dielectric surfaces. Similar to electrostatic force microscopy we record the electrostatic interaction between the probe and the sample surface, but at large tip-sample distances. For calibration we use a pyroelectric sample which allows us to alter the surface charge density by a known amount via a controlled temperature change. For proof of principle we determined the surface charge density under ambient conditions of ferroelectric lithium niobate.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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